The author discusses the challenge of creating a stable authenticated 0-click exploit for the Linux Kernel SMB3 Daemon (ksmbd), using real-world CVEs to demonstrate the process. They detail the selection of specific vulnerabilities, including a controlled SLUB overflow and an authenticated remote leak, to build an effective exploit chain. The article emphasizes the abundance of vulnerabilities in ksmbd and the importance of vulnerability research in developing exploits.
The article discusses the exploitation of CVE-2025-37947 in ksmbd, focusing on the challenges and methodologies used to achieve local privilege escalation. It details the vulnerability's root cause, the proof of concept implementation, and the kernel memory allocation intricacies that enable the exploit. The author emphasizes the importance of understanding memory management for effective exploitation.